package org.csmzxy233402;
class BankAccount{
    String accountNumber;
    double balance;
    public void broadcast(String accountNumber,double balance){
        System.out.println("账户"+ accountNumber + "的余额为" + balance + "元");
    }
}
public class example03 {
    public  static  void  main(String[] args){
        BankAccount account = new BankAccount();
        account . accountNumber = "123456";
        account .balance =-500;
        account.broadcast(account.accountNumber,account.balance);

    }
}
